U350B

Control Module Input Power C Circuit Intermittent/Erratic

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$6–33 (est.)

Symptoms

Unstable engine operation
Spontaneous shutdown of electronics
Check Engine Light Illuminates
Problems starting the engine
Malfunctions of the on-board computer

Causes

Poor contact in the control module connectors
Open or short circuit in the power supply
Power relay fault
Fuse problems
Corrosion on battery terminals

How to Fix

Check the condition of fuses and relays
Inspect the control module connectors for damage
Check the integrity of the power circuit with a multimeter
Clean battery terminals and check connections
Test the scanner control module

Related codes

U350C U350A U350E